Warp stop-motion for looms.



PATENTED JUNE 2, 1908.

A. E. RHOADES. WARP sror MOTION FOR. LOOMS.

f III APPLIGATIOII FILED AUG. 13.1807.

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UWTED .sT T as PATENT OFFIC 4 ALONZO' 'E; RHOADES, OF HO PEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER COMPANY, OF

' HOPEDALE, MASSACHUSETTS, "A CORPORATION OF MAINE.

WARP STOP-MOTION FOR'LOOMS.

Specification of Letters Patent.

Patented Jun 2,1908.

'kppl lcation'filed August 13, 1907. Serial No. 388,320.

Hopedale, county of Worccster, State of Massachusetts, have invented an Improvement in Warp Stop-Motions for Looms, of which-the following description, in connection with the accompanying drawing, is a resenting like arts.

. This inventiz n duct on of-a novel and efiicient warp stop- Inotion for looms, whereby the operation is improved, and jumping of the detectorsfrom the warp-threa s obviated in a simple n r-1: a

In ny' present invention the detectors are suspended each from a single warp-thread,

3 said detectors being. arranged in a plurality 'jof'banks or series, and herein Ihave shown them as cooperating with thewarpthreads' between the lease-rods.-, Broadly speakin the detectors, which also form a part of this invention, are of the so-called "hair-pin, type, being so con-' structed that they-may be'dropped onto the Warp-threads, which the straddle and by vhich' they are suspen ed in inoperative position so long as the threads are intact.

The various novel features .of my invention will be fully described in the subjoined specification and particularly pointed outin t e following claims.

Figure 1 is a transverse sectional view of a sufficient part of a loom, with a warp stopmotion applied thereto embodying one form ofmy invention; Fig. 2 is anenlarged front elevation of a portion of the mechanism illustr-at'ed in Fig. 1, taken atone side of the 100111 Fig- 3 is a crosssectional view thereof on the line 3 -3, Fig. 2, looking toward the left; Fig. 4 is an inner side elevation of one of the .stands upon which the major part of the stop-motion is mounted, with t e separate parts shown ad acent thereto but moved away from each other; Fig. 5 is a cross-section, enlar;i:ed, of one of the detectors on the line 5,.5,y 1g. 4.

Referring; to Fig. 1' the loom-sides A, have each'erectedthereon an n right standard A" rovided with an inturne flattened head a 7 ig. 2, of usual construction, and upon each standard is bolted a stand, shown in side eleva tion" in Fig. 4 and in front elevation Fig. 2.

the drawing rep- ,has for its object the pro- ,crowding. As best shown in Fig. 4, atthe i'ightiea'g'h Each stand is made as a castingandjconi arearwai'd extension or 'foot b -(which in; practice rests upon and is :bolted to the head a of'the adjacent standard AX) and :a dee' pending extension b 'rovided. at its'ilower end with an inturne'c tubular bearin II head for- Upright slots b are "formed in the a purpose to be described.

The front and rear faces of the extension-n: 1:5:

hair-pin type, and I- prefer to make t'hem'of 5 wire, of circular cross-section,-said detee-tors after being bent or formed to slia e b'eing f flattened 'by pressure to bring theat facesof the wire into the. parallel planes a ot the'" opposite faces ofthe detectors 3Thi sis shown in Fig. 5, the inner and outer edges of-the wire being rounded, as shown, the.-convexity.-,r%-' of the inner edge reducing'to a ininin uni a'ny abrading efi'ect upon the warp tlire'ad's ando decreasing the friction, while the flattening of the opposite faces decreases' the thickness through of a detector and-enables ad-arge' number to be assembled side by side lw ithoiit detector comprises parallel sides 4, connectedat tlieirupper ends at 5, and'bentinwardtoform opposite interior shoulders 6 between the top and bottom of the detector,the loweri portions 7 of the sides being also parallel, but nearer together. Each detector th'us re sents a, wide longitudinal Warp-receiving; f opening 8 in its u per ortion, andanar rower'entrance lea -ing t iereto from the bot tom of the detector between the parts 7 fi st bottom ofhth e openingS'. These'deteotprs are arranged in a plurality'of ba iks or ser es each detector straddling and be ng sus endthe sides, the shoulders 6 being lOCa /ed /jt' the *1 0 I .ed from a single warp-thread,"and"al' between the lease-rods L, L

, Upon the opposite seats 5 0f the'exten sions-b, of the two stands I: place detector supports '0, c, shownl erein as'relatively'thin' I prises an-upright, broad and plate-like head- ,down on the-supports for a limited distance,

upward movement being determined by'the' I I ,curved path just clearing the bottoms of the of a detector to jump up;

plates, in practice made of metal, of such thickness as to easily passbetween the p013 tions 7 of the detector sides, and herein the When the detectors are droppeduponthe warp-threads they are pushed down upon the supports until the shoulders 6 pass be ow'tlie sto )s c" the detector sides tem )oraril 1 l .l

spreading for the purpose. Thereafter the detectors hang suspended from the threads,- Figs. 1 and3, and are freely movable up, and

sto se ny tendency and ofi'fof its particular thread, either during the weaving operation or when the weaver is picking out, is obviated, for when the shoulders Bare brought agaiijist the stop e the further upward movement ceases. Herein I have-shown two banks of detectors'in the front ofthe crossing point of the warps and two banks at the rearthereof,

Figs. 1 and 3, the supports a, 0, serving for the. two inner banks, and similar supports c; c are provided for the twoouter banks, also enlarged at their upper edges, at c as eX- plained.

To provide the requisite distance between the supports 3 and c I use-spacers 9, which are pieces of metal each havin a horizontal shoulder 10 on its outer face, the spacers being placed against, the faces of the supports 0, c, and. resting at theirlower ends on the shoulders I) of the extensions b i The outer [detector-supports c, c"

are

; laced against the seats formed. by theouter aces and the shoulders 10 ofthe-spacers, and the bolts 2 are then applied, two of such bolts at each end of .the supports, to lirmly clamp all of the parts-together. Eacli spacer .is apertnred at 11, see dotted lines Fig. 4., and.

the sup orts c are correspondingly .apertured 'at 12, w ile registering apertures 13 are made in thej'supports c..' y

Itwill be noticed that the apertures 13 are nearer the 'u'pperged ges of the supports 0 than are the apertures 12 in the supports 0, which is to com ensate for the slightly higher posi-' tioning 0 thelatter supports upon the stands, this beinghecessary to bring the several supports into' proper relation to the inclination of the warp-threads, as shown ,in'Fi'g..3.

Referring toFigs. 2 and 3, it w ill be seen,

that the lower edges of the supports 0, c are in thesame horizontal plane, and the lower edges of supports 0, a m a somewhat lower plane. This arrangement is provided so that the feeler device can roperlycooperate-with :1 released detector. 0 any series, it being .un:

derstood that" the supports rigidly .con'nect the two stands and extend across the loom, with clear 5 aces between the supports except where t 1e spacers 9 are interposed.

A'rrmk-shaft f" 1s mounted n the opposite bearings b and hassecured to it arms j one I only being herein shown, to which arms the feeler is attached, the fceler hcrein -;,be ing.-

of 1.1 per and"lower duplex and consisting ower p ate belng wldcr metal plates f, f the than t 1e u per one.

The dup ex feelcr is in practice normally-' vibrated by'a'ny suitable mechanism usual {rh warp-stop-mot1ons of time general type, such for instance as is shown in United States latent to 'Stimpson, No. 6.73824, granted May 7, 1.901, and forming no .part of this invention. The feeler member f moves in a supports. c, and the memberf just clears the bottoms of the supports 0'. Should a detector on one of the supports 0 be released it will drop and its lower endwill cross the ath of the'feeler member f, arrestin the fee er and effecting the stoppage of the 00m. At such time the support serves as a back-sto to sup port the engaged detector close to t 1e point of engagement with the feeler member, preventing any tendency to bend or distortthe detecton' v Should a detectoron one of the sup orts c be released its engagement by'thc 'eeler member f would arrest feeler movement as before, and sinnlarly the detector would be orted. at their ends by rOcker-arms-ZO, two

or each rod, said arms .being fulcrunied at 21 on lates 22. which are connected to the,lieads b o -th e,stands by bolts 23 extended through the slots b.. When the bolts are loosened the'plates "22 can be raised or lowered to adjust the heightof the lease rods, as such adjustm ent is desirable in producing different effects on the cloth being woven. tions Zton'the plates 22 are arranged under the free ends ofthe rocker-arms, to limit descent of the lease-rods, I

Various changes in details of construction and arrangement may be made bf tlwse skilled in the art without departing ffointhe spirit and scope of my invention.

Having to y described my invention,

what I claim as new and desire to see ure by" Letters Patent is of series of detectors, each, detector bein suspendedfrom a single...warp-thread an 1. In a loom, in combination, a plurality Projcchaving opposite interior shoulders between i its top and bottom, a snpportlf for-andgon y which the detectors .of

cally movable, and an enlargement on. each lies are: iverti tors and of greater widththan said entrance opening, to limit upward movement of the detectors.

3. In a loom, in combination, a series of detectors each suspended from a single warpthread and formed of wire bent inward between the top and bottom of the detector to 'form opposite interior shoulders, leaving a wide openingat the top of the detector and a narrower elongated entrance thereto from its bottom, a fixed support on which the detectors are ,vertically slidable, and an enlargement on the support above the detector shoulders, to cooperate with the latter and limitjupward movement of the detectors.

4. In a loom, in combination, a plurality of series of detectors, each detector being suspended from a single warp-thread and having opposite interior shoulders between its top and bottom, a support for and on which the detectors of each series are vertically movable, an enlarged head on the top of each support, to cooperate with the shoulders of and limit upward movement of a de tector, and a normally vibrating feeler to engage a released detector, the bottom of the detector support extending close to the feeler path, to support the released detector adacent the point of engagement by the feelei. 5. In a loom, in combination, a series of detectors each suspended from a single warpthread and having a wide warp receiving opening and a narrower elongated entrance leading thereto longitudinally from the bottom of the detector, a fixed supporting bar on which the detectors are vertically movable, and an enlarged head-on the top of the bar of greater cross-section than the width of the entrance openings in the detectors,

' said headcooperating with the lower ends of the warp receiving openings to limit upward movement of the detectors, the bar below the head extending through the entrance openings of the detectors.

6. In a loom having lease-rods, in combination, a plurality of series of detectors, each detector being suspended from a single warpthread between the lease-rods andhaving a,

longitudinal opening extended from the, bottom of the detector upward and widened at its upper end, a normally vibrating, duplex feeler one member of which is adapted to engage a dropped detector of certain series and the other member to engage a dropped detector of the other series, fixed supports for the several series of detectors, and means on the supports to engage the bottom of the widened part "of a detector opening to limit upward movement of the detector.

'7. The combination, in a loom, of a plurality. of series of detectors, each detector being suspended from a single warp-thread,

a duplex, normally vibrating feeler, each member cooperating with a dropped detector in certain series and not in other series,

supports on which the detectors are mounted and vertically movable, and means to limit upward movement of the detectors.

8. The combination, in a loom provided with lease-rods, of a plurality of banks of detectors in front of the crossing point of the warps and a plurality of banks behind it, each detector being suspended from a single warpthread between the lease-rods, and having its sides inturned to form interior opposite shoulders below awide warp receiving opening, a support for each series of detectors, having an enlargement to enter such opening above the shoulders, and a normally vibrating, duplex feeler, one member thereof cooperating with a released detector in the two inner series and the other memberco operating with a released detector in the two outer series.

9. In a loom, stands on opposite sides thereof; each stand having a depending extension provided at its lower end with a bearing, a feeler'rock-shaft mounted in said bearings, a vertical seat on the front and rear of the extensions, a transverse detector-support carried by each seat, spacers adapted to bear against the ends of said supports and having each a vertical seat on its outer face, a detector-support carried by each of said seats, and bolts extended through each extension, the s acers and the detector-supports, to' fixec 'y clamp all of said parts in position upon the standards. g In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

ALONZO E. RHOADES. Witnesses: I 1

FRANK J. DU'rcHER, J. L. REMINGTON, Jr. 

